Some properties ofStreptococcus thermophilus bacteriophages |
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Authors: | S Kivi T Peltomäki K Luomala S S Sarimo |
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Institution: | (1) Department of Biochemistry, University of Turku, SF-20500 Turku, Finland |
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Abstract: | The morphology, host range, structural proteins and serological properties ofStreptococcus thermophilus phages isolated from Finnish cheese plants were investigated. The results show that all the nine phages belong morphologically
to Ackermann’s group B1. The host—phage reactions and plating efficiency justify the division of these phages into four specificity
groups. Most of the phages showed an absolute host specificity as to their plating efficiency but were not strictly specific
in the adsorption to different hosts. The electrophoretic profiles of the structural proteins appeared nearly identical. Ten
to eleven well separated proteins could be detected. The antiserum raised against one of the phages contained antibodies with
different neutralization capacity depending on the phage. Using an immunoblotting technique, four structural proteins were
detected that could bind phage antibodies. |
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